Material for curing substance containing ultrafine powder and curing method
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A technology of curing materials and ultrafine powders, which is applied in the field of curing materials, can solve the problems of unforeseen elution inhibition of harmful substances, unforeseen water collapse resistance of cured materials, etc., achieve excellent hydrophobicity, inhibit elution , With the effect of water collapse resistance
Inactive Publication Date: 2016-11-02
百濑淑 +2
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[0013] In addition, although the solidified bodies (hardened bodies) obtained by adding the solidified materials of Patent Documents 1 to 14 to sludge and the like all acquired a certain degree of strength (compressive strength), hydrophobicity, and even non-water absorption, as for the solidified bodies The water collapse resistance (resludge resistance) is not expected, and the elution inhibition of harmful substances such as harmful heavy metals is not expected
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[0191] Hereinafter, the present invention will be described by giving experimental examples including examples, but the invention of the present application is not limited by the following experimental examples.
[0192]
[0193] The raw materials of each component used in the test examples are as follows.
[0303] (5) Additional Experimental Example II (Confirmation Experiment of Hardening Auxiliary Agent for Organic Sludge)
[0304] It has been recognized that it is difficult to harden field soil or mountain soil containing a large amount of organic matter with cement. Therefore, cement A1 was used for field soil compounded with bagasse (bagasse), and it was hardened with the hardening auxiliary agent GM of the present invention to obtain solidified bodies of additional experimental examples II-1 to II-3, and these The cured body was subjected to the above-mentioned evaluation test. It should be noted that the amount of water required to formulate the composition was adjusted so that the slump value was 20-22 cm.
[0305] The results of the evaluation experiments are shown in Table 10. The fact that the citric acid-containing hardening aid of the present invention can achieve practical strength is confirmed.
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Abstract
The invention aims to provide a material for curing a substance containing in ultrafine powder and a curing method. Under the condition of curing of a blended material prepared by adding water into the substance containing in ultrafine powder, the curing material can obtain a solidified body with excellent hydrophobicity. The curing material is added to or mixed to the substance (to be treated) containing ultrafine powder formed by ultrafine powder or with ultrafine powder as a main body. The curing material is composed of a main agent composed of cement (an inorganic binder), and an auxiliary agent containing a hydrophobic endowing agent. The hydrophobic endowing agent in moisture hardening-type siliconeoligomer properly contains reactive silicone oil, fluoroalkyl alkoxysilane and other silane compounds.
Description
technical field [0001] The present invention relates to a curing material and a curing method using the curing material. The curing material is used for adding and mixing to a pollutant composed of ultrafine powder such as colloidal solid components or having the ultrafine powder as a constituent. Solidify it in the superfine powder containing matter (object to be processed) such as mud. [0002] In this specification, the so-called ultrafine powder is an aggregate of particles with an index of micron or less (please refer to the "Dictionary of Chemical Engineering" compiled by the Chemical Engineering Association (May 30, Showa 49) Maruzen, page 410 "Pulser" ). In addition, the ultrafine powder contains not only particles but also fibrous materials such as asbestos and the like that are several microns or less. [0003] The so-called sludge is not limited to the sludge (slurry treatment object) composed of silt, clay, humus containing organic matter, sapropel, and other ult...
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